Transplacental passage of the non-ionic contrast agent iopamidol in twins.

Premature dizygotic twins, exposed in utero to iopamidol (Isovue-370®) 4 days prior to delivery, were born with abdominal radiopaque densities that made exclusion of necrotizing enterocolitis difficult when they developed abdominal distention and feeding intolerance. This is a unique case report of transplacental passage of iopamidol.